1. Krefting Research Centre; University of Gothenburg; Göteborg; Sweden
2. Department of Otolaryngology; Nippon Medical School; Yayoi; Tokyo; Japan
3. Nova Southeastern University; Ft Lauderdale; FL; USA
4. Swiss Institute of Allergy and Asthma Research (SIAF); University of Zurich; Davos; Switzerland
5. Children's Mercy Hospital; Kansas City; MO; USA
6. National Jewish Health; Denver; CO; USA
7. Department of Pediatrics; University of North Carolina; Chapel Hill; NC; USA
8. Creighton University; Omaha; NE; USA
9. Division of Allergy/Immunology; University of South Florida; Tampa; FL; USA
10. Allergy Department, 2nd Pediatric Clinic; University of Athens; Athens; Greece
11. Department of Pediatrics; Emory University School of Medicine; Atlanta; GA; USA